Which gates is represented by this figure
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(a) NAND gate |
(b) AND gate |
(c) NOT gate |
(d) OR gate |
Which gates is represented by this figure
|
(a) NAND gate |
(b) AND gate |
(c) NOT gate |
(d) OR gate |
(a) NAND gate
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Assertion : In Young’s double slit experiment, the fringes become indistinct if one of the slits is covered with cellophane paper.
Reason : The cellophane paper decrease the wavelength of light.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
Three resistors each of 2 ohm are connected together in a triangular shape. The resistance between any two vertices will be
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(a) 4/3 ohm |
(b) 3/4 ohm |
(c) 3 ohm |
(d) 6 ohm |
Assertion : The induced emf in a conducting loop of wire will be non zero when it rotates in a uniform magnetic field.
Reason : The emf is induced due to change in magnetic flux.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
Ray optics is valid, when characteristic dimensions are
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(a) Of the same order as the wavelength of light |
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(b) Much smaller than the wavelength of light |
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(c) Of the order of one millimetre |
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(d) Much larger than the wavelength of light |
Wave which cannot travel in vacuum is
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(a) X-rays |
(b) Infrasonic |
(c) Ultraviolet |
(d) Radiowaves |
In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then the work done
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(a) Is least along the path AB |
(b) Is least along the path AD |
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(c) Is zero along all the paths AB, AC, AD and AE |
(d) Is least along AE |